Papers by Keyword: Network Database

Abstract: Database is the core part of university digital campus platform. Database encryption is an effective method to guarantee the security of data. The paper analyze the structure design of database security model, and study the design of mode function, key features and further implementation model. The system is suitable for security protection for network database management, and has a certain degree of universality, portability and security.

Abstract: This paper analyzes the functional design and structure design of the database security model networks, research and further realizes the key features of the model. The system is suitable for network security database management system, which has a certain universality and portability.

Abstract: With the continuous expansion of the amount of data resources, network databases are becoming increasingly critical to the development of enterprises. This paper is a comparative analysis and study on the basic information, characteristics and performance of the currently popular network databases, mainly including Oracle, DB2 of IBM, Informix Dynamic Server products, Adaptive Server of Sybase and SQL Server of Software.

Abstract: The research which aimed at low integration and inefficiency of the management in the existing tool management of the machinery manufacturing enterprise (group) in our country, developed tool whole life cycle management system software. It based on the tool whole life cycle theory and adopted Microsoft Visual Basic 6.0 language and Access2003 database. The system could do a series of operation, such as, tool purchasing application, tool adding, tool modifying, tool inquiry, tool borrowing and return, tool breakage forecast. And it could make assembling and disassembling tool sheets according to techniques plan. The system could use network database to store the data and output the data by the form of sheet. And it achieved tool information inquiry, distribution and integrated management.

Abstract: The district collaborative design is an advanced design organization mode. The problem of definition and expression of correlation in collaborative design is aimed. The organization characteristics are analyzed based on district collaborative design space. The connection relationship acyclic graph which includes connection semantics is achieved and the relationship specialty and connection mode are explained. The algorithm is proposed to solve correlation for district collaborative design by use of correlation information model, and the correlation management model based on PDM is illustrated. Finally, a case study is conducted to prove these theory and method.

Abstract: The formation and existence of burrs is one of the common phenomena in machining. It affects directly machining accuracy and parts quality. Network database system for metal cutting burr is developed using ASP.NET platform. The management of metal cutting burr data, inquiry and prediction of cutting burrs types and sizes, optimization of cutting conditions for controlling burr forming which based on the reasoning method of BP neural networks are realized. The development and realization of network database of metal cutting burr provide a convenient way for data transmission between multi-workshop and across regions, promote the development of burr controlling technology and modern manufacture technology.